> 2 Million-Strong ZeroAccess Botnet Disrupted by Microsoft and Law Enforcement

An international cooperative effort involving Microsoft, the FBI, Europol and A10 Networks has disrupted the ZeroAccess (Sirefef) P2P ad fraud botnet. ZeroAccess is believed to use up to 800,000 out of a total of two million infected PCs at any time, mostly in the US and Europe, capable of stealing $2.7 million from online advertisers every month.